Solve by taking Square Roots

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Solve by taking Square Roots Ms. Holmes

Vocabulary 1. Solution: the value(s) of x that make an equation true; If the corresponding graph of the equation is shown, the solution(s) are the x values of the x-intercepts. 2. Square root: = y if y · y = x

A square root is written with the radical symbol… The square of an integer is called a perfect square.

What do you think we should do?

What about this one??

Solving Quadratic Equations Example: x² - 7 = 9 x² = 16 x = ± x = ± 4

How about this one… x2 + 13 = 5

More Examples… x2 – 1 = 49 x2 – 5 = 76 2x2 = 14 -3x² = -48

Vocabulary: Inverse Operations: Two Operations are said to be Inverse to each other if one operation undoes the effect of the other operation.

Practice… x² + 6 = 70 6x² = 54 4m² = 48 -3x² = -300 Solve by taking

What about this one??

Now you try!

Solving Quadratic Equations with Square Roots Worksheet - All odd numbers!!! Closing